Health Coaching to Empowering Hospitalised Chronic Heart Failure Patients

Data collection: Data collection was carried out by two members of the research team, who were not directly involved in the care of the patients, at two points in time: T1, pre-intervention, and T2, post-intervention. Two questionnaires were used for data collection: 1. Patient empowerment questionnaire for patients with chronic illness (Garcimartin et al. 2019): validated instrument in Spain with good psychometric properties, excellent Cronbach's alpha (\>0.9) and moderate interclass correlation coefficient (0.47). It consists of 47 items and 3 dimensions: 1) Positive attitude and sense of control (21 items); 2) Shared and informed decision-making (13 items); and 3) Information seeking and sharing among peers (13 items). Response options for each item are scored on a 5-point Likert-type scale (1 strongly disagree and 5 strongly agree). The overall score for each patient ranges from 47 (worst empowerment) to 235 (best empowerment). 2. Questionnaire to collect sociodemographic and clinical variables: sex, age, educational level, marital status, employment status, hospital stay, Charlson index, 10-year survival, functional class (I-IV; according to NYHA), time of diagnosis and admissions in recent months. Ethical considerations: This study conformed to the principles set out in the Declaration of Helsinki and was approved by the centre's board and by the Research Ethics Committee (code 2019.066). Data custody complied with Organic Law 3/2018 on data protection (LOPDE). Informed consents were given to all participants. They were informed verbally and in writing about their free participation, the confidentiality and anonymity of the data and its use for scientific purposes. Nobody declined to participate or withdrew at any point of the study.